#!/usr/bin/lua

local uci = require('luci.model.uci').cursor()
local json =  require 'luci.json'
local site_code = require('gluon.site_config').site_code
local tools = require 'gluon.site_generate'

local template = io.open('/lib/gluon/site-select/template.json', 'r')
local config = template:read("*a")
default:close()
local groups = tools.get_config('/lib/gluon/site-select/groups.json')
local sites = tools.get_config('/lib/gluon/site-select/sites.json')
local currentsite = uci:get("currentsite", "current", "name")

if site_code ~= currentsite then
  local configured = false
  for _, site in pairs(sites) do
    if site.site_code == currentsite then
      local subst = {}
      subst['%%SN'] = site.site_name
      subst['%%SC'] = site.site_code

      if site.subst then
        config = tools.replace_patterns(config, site.subst)
      end

      if (site.site_select or {}).group and groups and groups[site.site_select.group] then
        group = groups[site.site_select.group]
        subst['%%GN'] = site.site_select.group
        if group.subst then
          config = tools.replace_patterns(config, group.subst)
        end
      end

      config = tools.replace_patterns(config, subst)

      local file = '/lib/gluon/site.json'
      local f = io.open(file, "w")
      f:write(config)
      f:close()

      configured = true
      break
    end
  end

  if configured == false then
    tools.force_site_code(site_code)
  end
end